Early 1900s Real Gold Filigree Victorian Shell Cameo Brooch Pendant. 2"x1.5"

It's a very old piece! And in amazing shape for its age! I was told it was probably 150 to 200 years old! Victorian.. the clasp is still in great working order on this beautiful brooch! I am still looking for a sign or mark on the back.. waiting on some better magnification to come in the mail. LOL I don't have young eyes anymore. Will post as soon as I know. Google guessed it was from the early 1900s 14 karat gold... possibly the late 1800s.